Engineering Giant
William F. "Bill" Baker is one of the most accomplished structural engineers of the modern era. As a partner at Skidmore, Owings & Merrill (SOM) and through his involvement with major engineering projects, Baker has helped shape some of the world's most ambitious structures. His work on supertall buildings — including contributions to projects associated with the engineering challenges faced by the Petronas Twin Towers — placed him at the forefront of tall building engineering during the 1990s.
Baker's engineering philosophy emphasises the integration of structural systems with architectural vision. He believes that the best structures are those where engineering is not merely a support system for architecture but an active partner in shaping the building's form and character. This approach was particularly relevant to the Petronas Towers, where the structural system — the tube-in-tube concrete frame — is inseparable from the building's architectural identity.
Contributions to Tall Building Engineering
Baker's expertise in tall building engineering encompasses the full range of structural challenges: wind resistance, seismic performance, foundation design, and the behaviour of high-strength materials under extreme loads. His understanding of these issues contributed to the broader body of knowledge that made the Petronas Towers possible.
The decision to build the Petronas Towers primarily from high-strength reinforced concrete rather than steel was influenced by engineering research to which Baker contributed. Concrete's superior performance in sway reduction — approximately twice as effective as steel — was a critical factor in the design of the towers, where wind loads in tropical Malaysia demanded exceptional structural rigidity.
Baker has also been instrumental in advancing the "buttressed core" structural system, which he later applied to the Burj Khalifa in Dubai — the world's tallest building. The principles he developed through his work on supertall buildings, including insights gained during the Petronas era, continue to influence tall building design worldwide.
Awards and Recognition
Baker has received numerous awards for his engineering contributions, including the Fazlur Rahman Khan Medal from the Council on Tall Buildings and Urban Habitat (CTBUH), recognising his lifetime contributions to the advancement of tall buildings. He has been elected to the National Academy of Engineering, one of the highest professional honours for an engineer in the United States.
His lectures and publications on structural engineering principles have educated generations of engineers, ensuring that the innovations developed during projects like the Petronas Twin Towers continue to benefit the profession and the built environment for decades to come.


